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The female lays three eggs at two-day intervals. With the first egg one bird (or
both) stays at the nest, sitting or standing guard. They incubate in turn, relieving
each other after periods of about two to five hours and often bringing new nest ...
White eggs are particularly attractive to predators so that, presumably to reduce
these risks, some of the ground- nesting pigeons (e.g., Old and New World quail
doves) lay brown or cream-coloured eggs. In many pigeons, once the eggs are ...
Visiting when the hosts are away from the nest the cuckoo is able to place her
egg in the nest after the host has started the clutch but before incubation has
begun. It is well established that the common cuckoo lays eggs at 48-hour
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This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review
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For virtually all its 238 years,Britannica has ruled the shelves as a peerless general encyclopedia. Reviewers have consistently given it high marks for most of the 12 criteria identified inKister's ... Read full review